High temperature composites and methods for preparing high temperature composites

Abstract

The invention concerns: A method for making a high temperature composite, which is a carbon carbon composite, a carbon ceramic matrix composite, or a carbon silica composite, comprising: a. making a precursor part from a resin comprising a poly(aryl ether ketone) (PAEK) copolymer comprising at least two different repeating units, one of the repeating units being present in an amount of 50 to 78 mol % compared to the total amount of the repeating units constituting the copolymer, and at least one reinforcing material; b. pyrolyzing the precursor part to a pyrolyzed part; c. infusing a liquid second resin into the pyrolyzed part to make an infused part; and d. pyrolyzing the infused part to make the carbon carbon composite, the carbon ceramic matrix composite, or the carbon silica composite, optionally repeating steps c. through d. one or more times.

Dependencies are inferred from the claim text.